LOS ANGELES (AP) Jack Kramer, a tennis champion in the 1940s and '50s and a promoter of the sport for more than 60 years, has died at his home in Los Angeles. He was 88.

Bob Kramer says his father died Saturday night of a soft tissue cancer that was diagnosed in July.

Kramer won the Wimbledon men's singles title in 1947 and the men's U.S. Championships, the forerunner of the U.S. Open, in 1946 and '47. He was the No. 1 player in the world for much of the late 1940s. He was also one of the founders of the Association of Tennis Professionals.

Details of a memorial service were expected later this week.